The experiment shows that proper amounts of exercise, if regularly, can improve our health.
| A．being carried out | B．carried out |
| C．carrying out | D．to carry out |
相关试题
After dinner he gave Mr. Richardson ______ ride to ______ Capital Airport.
| A．the; a | B．a; the | C．不填; a | D．不填; the |
I can't remember when exactly the Rohinsons left __ city. I only remember it was ____ Monday. 
| A．the, the | B．a, the | C．a, a | D．the, a |
If you grow up in ______ large family, you are more likely to develop ______ ability to get on well with ________ others. 
| A．/; an; the | B．a; the; / | C．the; an; the | D．a; the; the |
It is often said that____teachers have ____very easy life.
| A．不填；不填 | B．不填；a | C．the; 不填 | D．the; a |
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